In the year 400 B.E., both nations were subjugated by the Tevari imperium. Tevari built up the infrastructure of both nations, built a rail network, and built bridges across the Lekagar. In the year 271 B.E., the Tevari Emperor died with no heirs. This fractured the empire into hundreds of splinter factions, all fighting over control of the largest empire in Regalti history. This started the War of Purges, a devastating war of succession where each faction fought and wiped each other out until only a few remained.
When the War was nearing its midway point, one Tevari faction had subjugated most others, and they restarted their rule over the whole world. The other nations of the world each started declaring their independence. The nation of Vefaria and Araka joined together into one nation, using the many bridges the old empire built across the Lekagar, uniting into one people once again, and declaring war on Tevari.
The Fevarik front of the War of Purges was centered around the city of Vorem-Wreth, as control of that city would give control of the eastern half of the continent. The Tevari gained control of the city. They then started to destroy the many bridges to isolate the nations. A miscalculation from the Tevari cost them the war though. Their main airfield was on the Edagastra island to prevent attacks from the mainland. Edagastra was still an active volcano. It erupted once again, destroying their air force, which allowed Vefaria to claim victory.
Tevari was desperate for a victory, and started an aggressive bombing campaign to try to gain control. The city of Vorem-Wreth was completely destroyed during the war. Rather than rebuilding, Vefaria left the city abandoned and started the construction of new cities in other locations along the river. Nature quickly reclaimed the city in the centuries after this.
Genuinely impressed with how thorough this is! Love the map showing the Lekagar and the greater system of rivers. ---------------------------------------------------------------- Feel free to check out my Rivers/Waterways entry: Loch Mesner
Thanks for taking the time to read this and thanks for the kind words!